Upper Control Arms

UMI Performance extended length upper control arms are designed to center the rear wheels in the wheel well on the Impala SS. These control arms are extended 5/8” with additional adjustment for perfect centering. The user can lengthen or shorten the control arms an additional 1/2” beyond the extended length. Built from DOM tubing with CNC machined mounting points and 4140 Chrome Moly tube adaptors. Features a high strength 4140 Chrome Moly heat treated solid adjuster. Includes polyurethane bushings for quiet operation. Designed to work with extended length lower control arms. Note: Longer driveshaft may be necessary depending on ride height variation.

Additional Information

UMI’s extended uppers for the Impala SS add 5/8” length with extra adjustability to center rear wheels. Built from DOM tubing with Chrome Moly adjusters and poly bushings for strength, fitment, and quiet performance.

• 4140 Chrome Moly heat treated adjuster
• CNC machined and contoured for exact tolerances and accuracy
• Durable long lasting glossy powder coat finish
• Easy on-car adjustments for additional length and setting pinion angle
• high quality grease-able polyurethane bushings
• Shipped pre-set at 5/8” extended length

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Product Downloads

#	Document Type	Download
1.	Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Reference Information